^ 2.02.12.2Arellano Ferro, A.; Giridhar, S.; Rojo Arellano, E., A Revised Calibration of the MV-W(O I 7774) Relationship using Hipparcos Data: Its Application to Cepheids and Evolved Stars, Revista Mexicana de Astronomía y Astrofísica, April 2003, 39: 3–15, Bibcode:2003RMxAA..39....3A, arXiv:astro-ph/0210695
Israelian, G.; Lobel, A.; Schmidt, M. R. The Yellow Hypergiants HR 8752 and ρ Cassiopeiae near the Evolutionary Border of Instability. The Astrophysical Journal Letters. 1999, 523: L145–L149. Bibcode:1999ApJ...523L.145I. arXiv:astro-ph/9908308. doi:10.1086/312283.引文使用过时参数coauthors (帮助)